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Table 5 Reasoner-inferred links for both human and mouse

From: Integrating phenotype ontologies across multiple species

  HP (human) MP (mouse)
Number of is_a relationships asserted in ontology 10,162 7,950
Number of is_a relationships that can be inferred automatically 1,421 2,922
Number of novel is_a relationships proposed (unvetted) 407 478
  1. To validate our approach, we attempted to derive existing non-redundant relationships in two phenotype ontologies based on equivalence mappings and external ontologies. The first row is the number of relationships manually asserted by the ontology editors. The second row is the number of these asserted relationships that we can independently infer from first principles. The final row is the number of novel new relationships found by the reasoner - some of these will be false positives, but others will represent genuine missing links in the ontology. A higher proportion was yielded for mouse due to the higher number of mappings (Table 3; we only expect to recapitulate relationships when we have mappings).